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  • Journal of weekly news and commentaries about

    Collection of weekly news and commentaries from John Betts lecturer author photographer mineral collector and mineral dealer. Practical everyday advice for

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  • GlossaryU.S. Energy Information Administration

    Energy Information AdministrationEIAOfficial Energy Statistics from the U.S. Government

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  • MagnetiteWikipedia

    Magnetite is a mineral and one of the main iron ores. With the chemical formula Fe 3 O 4 it is one of the oxides of iron. Magnetite is ferrimagnetic it is attracted

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  • LodestoneWikipedia

    A lodestone is a naturally magnetized piece of the mineral magnetite. They are naturally occurring magnets which can attract iron. The property of magnetism was

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